>>102716016
Pomu was not allowed to use her Home3D until after she submitted her graduation, and the Home3D we saw looked like ass
Hayama herself refuses to use the model because she wanted a totally different character design. She can pull out the old model and use it if she wants to, she just chooses not to. Pomu just wanted a model that worked.

>>102691761
Maybe Hololive, but certainly not Nijisanji